Anchor image for videos

I would like to place a cover or anchor image on the video box video embed. I have tried the following with the Highend shortcoded video and the VC video embed, and none work. I have tried poster=”IMAGE” anchor=”IMAGE” and cover=”IMAGE” None of these work.

Is there a supported attribute I can use for this in Highend?

Here’s an example of what I have tried

[video_embed url=”https://youtube.com/watch?v=A4eKjQLYa4w” anchor=”https://my-cover-image-name.jpg” embed_style=”default” width=”80%”]